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Volume 5 Issue 1
Jan.  2023
Article Contents

Balage P, Lopez J, Bonamis G, Hönninger C, Manek-Hönninger I. 2023. Crack-free high-aspect ratio holes in glasses by top–down percussion drilling with infrared femtosecond laser GHz-bursts. Int. J. Extrem. Manuf. 5 015102.
Citation: Balage P, Lopez J, Bonamis G, Hönninger C, Manek-Hönninger I. 2023. Crack-free high-aspect ratio holes in glasses by top–down percussion drilling with infrared femtosecond laser GHz-bursts. Int. J. Extrem. Manuf. 015102.

Crack-free high-aspect ratio holes in glasses by top–down percussion drilling with infrared femtosecond laser GHz-bursts


doi: 10.1088/2631-7990/acaa14
More Information
  • Received Date: 2022-04-11
  • Accepted Date: 2022-12-07
  • Rev Recd Date: 2022-07-07
  • Publish Date: 2022-12-29
  • We report novel results on top-down percussion drilling in different glasses with femtosecond laser GHz-bursts. Thanks to this particular regime of light–matter interaction, combining non-linear absorption and thermal cumulative effects, we obtained crack-free holes of aspect ratios exceeding 30 in sodalime and 70 in fused silica. The results are discussed in terms of inner wall morphology, aspect ratio and drilling speed.

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Crack-free high-aspect ratio holes in glasses by top–down percussion drilling with infrared femtosecond laser GHz-bursts

doi: 10.1088/2631-7990/acaa14
  • 1 Université de Bordeaux-CNRS-CEA, CELIA UMR 5107, 33405 Talence, France;
  • 2 Amplitude, Cité de la Photonique, 11 Avenue de Canteranne, 33600 Pessac, France

Abstract: 

We report novel results on top-down percussion drilling in different glasses with femtosecond laser GHz-bursts. Thanks to this particular regime of light–matter interaction, combining non-linear absorption and thermal cumulative effects, we obtained crack-free holes of aspect ratios exceeding 30 in sodalime and 70 in fused silica. The results are discussed in terms of inner wall morphology, aspect ratio and drilling speed.

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